{"id":"CVE-2024-29977","aliases":["EUVD-2024-2607","GHSA-jq3g-xqpx-37x3","GO-2024-3030"],"status":"published","title":"Malicious remote can create arbitrary reactions on arbitrary posts","description":"Mattermost versions 9.9.x \u003c= 9.9.0, 9.5.x \u003c= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary 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Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-29977","tags":["advisory"]},{"url":"https://pkg.go.dev/vuln/GO-2024-3030","tags":["web"]},{"url":"https://github.com/advisories/GHSA-jq3g-xqpx-37x3","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/29xxx/CVE-2024-29977.json","tags":["advisory"]},{"url":"https://github.com/mattermost/mattermost","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2024-29977","title":"Malicious remote can create arbitrary reactions on arbitrary posts","description":"Mattermost versions 9.9.x \u003c= 9.9.0, 9.5.x \u003c= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts","status":"published","published":"2024-08-01T14:05:00.34Z","modified":"2024-08-01T14:35:07.529Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:34:15.337999Z"}],"euvd":[{"id":"EUVD-2024-2607","description":"Mattermost versions 9.9.x \u003c= 9.9.0, 9.5.x \u003c= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts","status":"published","published":"2024-08-01T14:05:00Z","modified":"2024-08-01T14:35:07Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"updated_at":"2026-11-03T03:50:48.911719Z"}],"ghsa":[{"id":"GHSA-jq3g-xqpx-37x3","title":"Mattermost failed to properly validate synced reactions","description":"Mattermost versions 9.9.x \u003c= 9.9.0, 9.5.x \u003c= 9.5.6 fail to properly 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posts","status":"published","published":"2024-08-01T14:05:00.34Z","modified":"2026-10-28T02:30:44.000386284Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","level":"low"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:44:40.06138Z"},{"id":"GHSA-jq3g-xqpx-37x3","title":"Mattermost failed to properly validate synced reactions","description":"Mattermost versions 9.9.x \u003c= 9.9.0, 9.5.x \u003c= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts","status":"published","published":"2024-08-01T15:32:21Z","modified":"2024-11-18T16:26:57Z","cvss":[{"version":"3.1","score":2.7,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N","level":"low"},{"version":"4.0","score":5.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:46:50.687609Z"},{"id":"GO-2024-3030","title":"Mattermost failed to properly validate synced reactions in github.com/mattermost/mattermost-server","description":"Mattermost failed to properly validate synced reactions in github.com/mattermost/mattermost-server","status":"published","published":"2024-08-06T22:40:50Z","modified":"2026-03-03T04:55:36.840171Z","updated_at":"2026-11-02T15:47:01.453823Z"}]}}